Threaded fastener



FIG. 1 is a top, first side and second side elevational view of a threaded fastener showing our new design;

FIG. 2 is a first side elevational view thereof, the opposite elevational view thereof being the mirror image to that shown;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a second side elevational view thereof, the opposite side elevational view thereof being a mirror image of that shown. 

We claim the ornamental design for a threaded fastener, as shown and described. 